In 2004, scientists found Sedna, a potential dwarf planet beyond the belt, had a strange orbit around the sun that hinted another large mass was gravitationally pulling it. A 2014 study found a ...
In the time Pluto was found, classified as a planet and reclassified as a dwarf planet, it has not completed one orbit. One ...
A large planet has been spotted orbiting a dwarf star that is just 3 million years old, offering possible clues to how the ...